- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45001 > LUW025A-S 1-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE PDF資料下載
參數(shù)資料
| 型號： | LUW025A-S |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 14/15頁 |
| 文件大?。?/td> | 700K |
| 代理商： | LUW025A-S |
8
Tyco Electronics Corp.
Data Sheet
November 2001
36 Vdc to 75 Vdc In; 3.3 Vdc and 5 Vdc Out; 16.5 W and 25 W
LUW025-Series Power Modules: dc-dc Converters:
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL 60950, CSA C22.2 No. 60950-00, and VDE
0805 (IEC60950).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75 Vdc), for the module's output to be considered
meeting the requirements of safety extra-low voltage
(SELV), all of the following must be true:
s
The input source is to be provided with reinforced
insulation from any other hazardous voltages, includ-
ing the ac mains.
s
One VI pin and one VO pin are to be grounded or
both the input and output pins are to be kept floating.
s
The input pins of the module are not operator acces-
sible.
s
Another SELV reliability test is conducted on the
whole system, as required by the safety agencies, on
the combination of supply source and the subject
module to verify that under a single fault, hazardous
voltages do not appear at the module's output.
Note: Do not ground either of the input pins of the
module without grounding one of the output
pins. This may allow a non-SELV voltage to
appear between the output pins and ground.
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
The input to these units is to be provided with a maxi-
mum 5 A normal-blow fuse in the ungrounded lead.
Feature Descriptions
Overcurrent Protection
To provide protection in a fault (output overload) condi-
tion, the unit is equipped with internal current-limiting
circuitry and can endure current limiting for an unlim-
ited duration. At the point of current-limit inception, the
unit shifts from voltage control to current control. If the
output voltage is pulled very low during a severe fault,
the current-limit circuit can exhibit either foldback or
tailout characteristics (output-current decrease or
increase). The unit operates normally once the output
current is brought back into its specified range.
Remote On/Off
The remote on/off signal is referenced to the primary
and is available with either positive or negative logic.
Positive logic remote on/off turns the module on during
a logic-high voltage on the REMOTE ON/OFF pin, and
off during a logic low. Negative logic, device code suffix
“1,” turns the module off during a logic high and on dur-
ing a logic low and is the factory-preferred configuration
(see the Feature Specifications table).
To turn the power module output on and off, the user
must supply a switch to control the voltage between the
on/off terminal and the VI(–) terminal (Von/off). The
switch may be an open collector or equivalent (see Fig-
mum Ion/off during a logic low is 1 mA. The switch
should maintain a logic-low voltage while sinking 1 mA.
During a logic high, the maximum Von/off generated by
the power module is 10 V. The maximum allowable
leakage current of the switch at Von/off = 10 V is 50 A.
8-758e
Figure 13. Remote On/Off Implementation
Output Voltage Set-Point Adjustment
(Trim)
Output voltage adjustment (trim) allows the user to
increase or decrease the output voltage set point of a
module. This is accomplished by connecting an exter-
nal resistor between the TRIM pin and either the VO(+)
or VO(–) pin.
Connecting an external resistor between the TRIM pin
and VO(–) pin (Radj-down) decreases the output voltage
set point (see Figure 14). In order to maintain the out-
put voltage accuracy, the trim resistor tolerance should
be ±0.1%.
+
Ion/off
-
Von/off
REMOTE
ON/OFF
VI(+)
VI(-)
LOAD
VO(-)
VO (+)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LUW025A | 1-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE |
| LUW025F-S | 1-OUTPUT 16.5 W DC-DC REG PWR SUPPLY MODULE |
| LUW025F1-S | 1-OUTPUT 16.5 W DC-DC REG PWR SUPPLY MODULE |
| LUW025F6 | 1-OUTPUT 16.5 W DC-DC REG PWR SUPPLY MODULE |
| LV51140T | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LUW025F | 功能描述:CONVERTER DC/DC 3.3V 16.5W OUT RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:LUW025 設(shè)計資源:VI-200, VI-J00 Design Guide, Appl Manual 標(biāo)準(zhǔn)包裝:1 系列:* 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?42V 電壓 - 輸入（最大）:60V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:* 電源（瓦） - 制造商系列:150W 電壓 - 隔離:* 特點:* 安裝類型:通孔 封裝/外殼:9-SlimMod 尺寸/尺寸:4.60" L x 1.80" W x 0.52" H（116.8mm x 45.7mm x 13.2mm） 包裝:散裝 工作溫度:-55°C ~ 85°C 效率:* 電源（瓦特）- 最大:* |
| LUW025FZ | 功能描述:DC/DC轉(zhuǎn)換器 48Vin 3.3Vout 16.5W RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| LUW30243 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LUB30243 |
| LUWC9EN-N4N6-EG | 制造商:OSRAM 功能描述:FLASH LED |
| LUWC9EP-N4N6-EG | 制造商:OSRAM 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。